From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Comparison of the overall torsional strength of the S.S. Jaguar with the Phantom and Wraith models.
| Identifier | ExFiles\Box 126\5\ scan0051 | |
| Date | 11th April 1938 | |
| To By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Clapham. c. Da.{Bernard Day - Chassis Design} c. Da{Bernard Day - Chassis Design}/Ev.{Ivan Evernden - coachwork} 1070 Rm{William Robotham - Chief Engineer}/Clapham.1/MH.{M. Huckerby}11.4.38. The overall torsional strength of the S.S.Jaguar (chassis and body) is 2900 lbs.ft./degree. This compares with 3480 for Phantom and 2040 for Wraith. Rm{William Robotham - Chief Engineer}/Clapham. | ||